Linux Beginner

from "Devices" in the menu and install the package to improve your experience.

- When you want to work with a shared folder under Virtual Box you may get some "permission denied" notice. For gaining access you need to do the following:

sudo adduser xxx vboxsf

xxx is your user account name and you need to log out and log in back again to have the error resolved.

- Ubuntu has package installer you won't need much afford to install packages on Ubuntu; it's like what is done in Mac Os. However for using the command line is very easy as the guide on Ubuntu webpage. In short you need to know:

set OPENCV_TEST_DATA_PATH environment variable to <path to opencv_extra/testdata>.

execute tests from build directory.

For example

1 <cmake_build_dir>/bin/opencv_test_core

Note

If the size of the created library is a critical issue (like in case of an Android build) you can use the install/strip command to get the smallest size as possible. The stripped version appears to be twice as small. However, we do not recommend using this unless those extra megabytes do really matter.